51
MAXIMUM VOLUME OF WATER
Maximum volume of water in the system with wet module
Before filling the water system, it is advisable to consider the type of installation in question, i.e. check the difference in level bet-
ween the wet module and user. The following table gives the maximum water content of the water supply system in liters, depen-
ding on the capacity of the standard surge chamber supplied and the pressure at which it should be charged. The surge cham-
ber setting must be regulated to suit the maximum positive difference in level of the user.
Maximum setting value 600 kPa.
With a positive H of more than 12.25 meters, calculate the surge chamber’s service charge value in kPa using the formula below:
Surge chamber service charge= [H/10.2+0.3]x100 = [kPa]
NOTE: In case A, make sure that the user’s lowest point is able to withstand the global pressure.
Tab.1
NOTE: If the unit operates with brine, calculate the real volume of the system by taking into account the corrective factors for the
volume of the system given in the table below.
Corrective factors per total maximum volume of the system with brine
% of brine 0% 10% 20% 30% 40%
Cooling Mode 1.000 0.738 0.693 0.652 0.615
Heating Mode 1.000 0.855 0.811 0.769 0.731
Model 50-60-70-80
90-100-110-115-130-145-160-180-200
Surge chamber volume (liters) 12 24
Thermal expansion of water (10-40°C) 0.0074
Thermal expansion of water (10-60°C) 0.0167
H (meters)
Surge chamber
pressure (kPa)
Maximum total volume of water supply system (liters)
IR IP IR IP
Case A H <0 150 (standard) 1043 461 2085 921
Case B
0 < H < 12.25 150 (standard) 1043 461 2085 921
15 177 980 435 1960 870
20 226 866 384 1732 768
25 275 753 334 1505 667
30 324 640 283 1279 566
U= User
CASE B
CASE A
U
U